My cal spa hot tub says OH and Sn... do I need to replace just the heat sensor or high limit sensor? Or both? When I reset the hot tub I heard the high limit sensor clicking then it just shut itself down.
My cal spa hot tub says OH and Sn... do I need to replace just the heat sensor or high limit sensor? Or both? When I reset the hot tub I heard the high limit sensor clicking then it just shut itself down.
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